According to a poster over at the Westeros forums, actor Eugene Simon is up for the role of Joffrey. Simon is best known for his role in the Heath Ledger film Casanova, where he played a younger version of the titular character. He has since appeared in a few made-for-TV movies, including an upcoming remake of Ben-Hur, where he again stars as the younger version of the main character.
Winter Is Coming: Due to the second-hand nature of this rumor, be sure to take it with a grain of salt. But since we’re starved for any info here, I figured it was worth a post. Simon is approximately 15/16, so they are casting a bit older than the leaked script indicated (which had listed Joffrey as 13.) The picture here is
the most recent one I could find, but is still a few years old courtesy of Screenterrier. But based on this pic, I would say he has the right look. I’m not familiar enough with his acting to comment on his ability. Then again, Joffrey isn’t a demanding role, so you wouldn’t need an exceptional actor to pull it off.